Transcript
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
HIGH WALL COOLING ONLY AND HEAT PUMP DUCTLESS SPLIT SYSTEMS STRAIGHT COOL/HEAT PUMP*
Nominal Circuit Capacities: 9,000, 12,000, 18,000, 24,000 Btuh units.
9,000 & 12,000
18,000
24,000
Enviromaster International LLC 5780 Success Dr. Rome, NY 13440 www.enviromaster.com
An ISO 9001-2000 Certified Company
P/N# 240006537 Rev. 1.0 [01/07]
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INSTALLATION, OPERATION AND MAINTENANCE MANUAL P/N 240006537 , Rev. 1.0 [01/07]
This manual is intended as an aid to a qualified service personnel for proper installation, operation, and maintenance of EMI EnviroAir high efficiency R-410A Ductless Split Systems. Carefully read these instructions before attempting installation or operation. Failure to follow these instructions may result in improper installation, operation, or maintenance, possibly resulting in fire, electrical shock, property damage, personal injury, or death. Shipping Damage MUST be Reported to the Carrier IMMEDIATELY!!! Examine the carton for signs of damage if any is evident open packaging and check the unit for shipping damage. SAFETY INSTRUCTIONS
TO THE INSTALLER
(2) Before leaving the premises, review this manual to be sure the unit has been installed correctly and run the unit for one complete cycle to make sure it functions properly.
Read all instructions before using the EMI EnviroAir high efficiency system. Install or locate this system only in accordance with these instructions. Use this system only for its intended use as described in this manual.
To obtain technical service or warranty assistance during or after the installation of this unit, check our website @ www. enviromaster.com or call your installing contractor or distributor. Our technical service department may be contacted at 1-800-228-9364.
Check rating plate for correct system voltage before installing. Installation and operation of a system with the incorrect voltage may result in malfunction or other issues and will void the warranty.
(1) Retain this manual for future reference.
When calling for assistance, please have the following information ready:
The EMI EnviroAir system must be connected only to a properly grounded electrical supply. Do not fail to properly ground this unit.
• Indoor Unit Model Number___________________
Turn off the electrical supply before servicing the EMI EnviroAir system.
• Indoor Unit Serial Number___________________
Do not use the EMI EnviroAir system if it has damaged wiring, is not working properly, or has been damaged or dropped.
• Outdoor Unit Model Number___________________ • Outdoor Unit Serial Number___________________
[Save These Instructions]
• Date of installation________________
! EnviroAir High Wall Ductless Split Systems
This symbol is an indication of Important Safety Information. 2
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
!
DANGER
!
Tampering with the EMI EnviroAir cooling system is dangerous and may result in serious injury or death. Tampering voids all warranties. Do not attempt to modify or change these units in any way.
INSTALLER SUPPLIED ITEMS • Main System Breaker: Sized per unit requirements, to be mounted adjacent to outdoor unit. • Mounting Hardware: Wall anchors, condenser pad. • Vacuum Pump
PRODUCT DESCRIPTION
• Gauge Set : R-410 specific.
• High Voltage Interconnect Wiring: The EnviroAir system is an efficient duct14 AWG wiring from outdoor unit to inless split air conditioning system with cooldoor unit for power and control. * ing capacities from 9,000-24,000 Btuh and heat pump capacity of 9,000-24,000 Btuh. • Refrigerant : R-410A required for additional line sets beyond 16 ft. Designed for quiet operation and boasting compact dimensions, the EnviroAir sys* Can be purchased through the factory as an tem includes advanced features like autoaccessory, (part of the Tube Set Kit below) restart, full feature remote control.
ACCESSORY Comprised of three standard components the indoor high wall evaporator, the out Tube-Set Kit consisting of: • Refrigerant Line Set - 25 feet of door condensing unit, and an infrared suction and liquid line, both fully inhandheld remote control. The EnviroAir sulated, and flare fittings supplied system is engineered to the highest peron both ends. formance and reliability standards. The evaporator is equipped with permanent • Interconnecting High Voltage Wiring washable air filters as well as motorized - 25 feet supplied. air sweep for enhanced air circulation, and • Additional Condensate Tubing - 6 feet the condensing unit is equipped as stanextra supplied. dard with a high efficiency rotary compressor. FACTORY SUPPLIED ITEM EMI recommends the EnviroAir system for residential and light commercial cool- • Matched System Consisting Of: Evaporator section and condenser secing applications. The EnviroAir system will tion with remote control. operate in standard cooling mode down to 60°F outdoor temperature. ITEMS FOR CONSIDERATION The EnviroAir system is backed with the standard limited warranty that applies Application: to all EMI equipment. For a copy of this Check the application of the unit prior to limited warranty, please contact EMI cus- installation, certain applications require tomer service or refer to the website at additional components or installation parameters, such as the need for external www.enviromaster.com. condensate pump or if the system will need to perform low ambient cooling at outdoor temperatures below 60°F. EnviroAir High Wall Ductless Split Systems
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS CHOOSING UNIT MODEL MODELS OFFERED Indoor Model #
Outdoor Model #
Duty
Capacity Btuh
Voltage
KWCA09A0
K1CA9000A00
Cooling Only
9,000
115-1-60
KWCA12A0
K1CA2000A00
Cooling Only
12,000
115-1-60
KWCA18D0
K1CA8000D00
Cooling Only
18,000
208/230-1-60
KWCA24D0
K1CA4000D00
Cooling Only
24,000
208/230-1-60
KWHA09A0
K1HA9000A00
Heat Pump
9,000
115-1-60
KWHA12A0
K1HA2000A00
Heat Pump
12,000
115-1-60
KWHA18D0
K1HA8000D00
Heat Pump
18,000
208/230-1-60
KWHA24D0
K1HA4000D00
Heat Pump
24,000
208/230-1-60
EnviroAir Indoor Unit Nomenclature
EnviroAir Outdoor Unit Nomenclature
Position
1
2
3
4
5,6
7
8
Position
1
2
3
4
5
6
7
8
9
10 11
Example
K
W
C
A
09
A
0
Example
K
1
C
A
9
0
0
0
A
0
EnviroAir Unit Unit Style W = High Wall Unit Duty C = Cooling Only H = Heat Pump Design Revision A = R-410A Capacity 09 = 9,000 Btuh 12 = 12,000 Btuh 18 = 18,000 Btuh 24 = 24,000 Btuh Voltage A = 115-1-60 (09 and 12 only) D = 208/230-1-60 (18 and 24 only)
EnviroAir Unit Number of Zones 1 = Single Zone Duty C = Cooling Only H = Heat Pump Design Revision A = R-410A Zone 1 Capacity 9 = 9,000 Btuh 2 = 12,000 Btuh 8 = 18,000 Btuh 4 = 24,000 Btuh Not Used Not Used Not Used
Not Used
Voltage A = 115-1-60 (9 and 2 only) D = 208/230-1-60 (8 and 4 only) Controls 0 = Standard Condenser Coil 0 = Standard Al/Cu
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS PRE INSTALLATION Determine the best location for mounting the indoor unit, it must be located a minimum of 4 ft (6 ft or more recomended) from the floor and no less than 6” from ceiling. Pay attention to the air circulation in the room, 9,000 & 12,000 Btuh units throw air 15ft, 18,000 & 24,000 Btuh units throw air 25ft, ensure no obstacles to airflow exist. Locate the indoor and outdoor units as close together as possible, maximum line set run and lift MUST NOT BE EXCEEDED. Determine how the interconnect piping, wiring and condensate hose are to be run.
CONTROLS AND COMPONENTS Units are supplied with a wireless remote control, which communicates with the unit microprocessor control. The return air temperature sensor mounted in the indoor unit provides input to the control for system operation. Several modes of operation are available to the end user depending on the type of comfort required. All unit operating functions are controlled via the remote control. Refer to “System Operation” section of this manual.
Unit
Max Line Set Run
Max Vertical Lift
OPTIONAL CONTROLS AND COMPONENTS Low Ambient Control: Please consult the factory for availability of approved method of low ambient cooling operation.
KWCA/K1CA 09/12
35 Feet
17 Feet
KWCA/K1CA 18/24
50 Feet
17 Feet
KWHA/K1HA 09/12
35 Feet
17 Feet
KWHA/K1HA 18/24
50 Feet
17 Feet
Ensure that all panels can be removed for service as required. Certification: All EnviroAir Ductless Splits are certified by UL under UL Standard 1995. Performance is varified by CSA under ARI 210/240 test standard.
EnviroAir High Wall Ductless Split Systems
Condensate Pump: It is recommended to use the supplied condensate drain hose in a gravity fed method whenever possible. If this can not be done then a field installed pump that is external to the evaporator would be required.
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION
!
CAUTION
!
Follow Instructions, failure to follow instructions may cause possible malfunction and void any warranty.
Remove indoor and outdoor units from the carton/box. Indoor unit carton contains, remote control and batteries, ensure these are kept in a safe place during installation.
Locate area to install indoor unit the unit should be located a minimum of 6 ft. from the floor and 6” from the ceiling. Choose an area where the wall is plumb and determine how to best to run the unit interconnects.
CEILING L W AL
L
AL W
6” from ceiling minimum 8” from wall minimum
8” from wall minimum
4ft from floor (minimum) 6ft plus from floor (optimum)
FLOOR
Ensure no obstacles to airflow are directly in front of the unit, for a minimum of 12 ft for 9,000/12,000 Btuh units and 16 ft for 18,000/24,000 Btuh units.
EnviroAir High Wall Ductless Split Systems
Do not install the Indoor unit units in areas exposed to high humidity (Relative Humidity of 80% or more), direct sunlight and direct heat from stoves or other devices.
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION Prepare the evaporator for mounting by removing the mounting bracket from the rear of the indoor unit. Use a Phillips head screwdriver to remove the unit pipe strap. If the unit is a heat pump the defrost sensor also must be undone from its retainer. If mounting the unit on an outside wall measure from the edges of the unit to the center of the line set 90° bend to locate the the center of the wall penetration. Drill a 3” ø hole through the wall. Angle the wall penetration slightly down towards the outside to assist in draining the condensate away from the unit.
knockout
If mounting the unit on an inside wall, use the knockouts provided on the left and right sides of the unit to route the piping and wiring connections through. The indoor unit weighs a maximum of 20 Lbs. Use wall anchors to secure the mounting bracket to a wall stud and ensure that the wall is capable of holding the weight of the unit. Be sure mounting bracket is level, so that the condensate can drain properly.
knockout
remove mounting bracket
mounting bracket on wall
3” ø hole
Note: Prepare all wiring and piping connections before hanging the unit on the mounting bracket.
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION Prepare unit line set connections Rotate refrigerant line stubs gently to 90° (if mounting on an outside wall). For other line set configurations align the stubs as required. Tip: Use Duct tape to tape the Condensate hose (make sure it is below the Line set stubs) and the defrost sensor (heat pump only). This makes it easier to guide them through the hole in the wall.
Feed the 14 AWG interconnect wiring between indoor and outdoor through the unit electrical connection (maximum number of 6 wires is required) (if required by local codes an electrical connector can be attached to the rear of the unit). Tape the loose wire to the line set stubs. (See Electrical Wiring Install section.) These two tips save time and prevent damage to the stubs when mounting the indoor unit.
HEAT PUMP SYSTEMS Very Important! Make sure the defrost sensor wire is run and connected between the indoor and outdoor units, or the heat pump system will not operate in heat mode. Refer to “Heat Pump Wiring” section of this manual.
duct tape
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION Install unit on mounting bracket Feed the line set stubs/condensate hose/ wiring connections through a ø 3” hole in the wall. Position the evaporator so that the “key” slots on the back of the unit slide onto the tabs on top of the mounting bracket. Then push the lower portion of the evaporator against the bracket until it latches into the mounting bracket. Indoor unit is now installed, it should be plumb, level and flush with the wall. Insure that the line set stubs are completely
18,000 Btuh shown
through the wall penetration, also check that the wall is plumb. The unit must be level and plumb for proper condensate removal.
OUTDOOR UNIT INSTALLATION Locate Outdoor unit Select a location with proper ventilation, minimizing recirculation possibility. Do not install the outdoor unit in a location exposed to high winds (field fabricated and installed wind baffle may be required).
Clearances for the Outdoor unit:
Ensure location does not impede access around unit and pose a disturbance to neighboring areas. Install the outdoor unit on a condenser service pad. If unit is a heat pump extend feet to raise 6” to allow for defrost to drain away.
12” Minimum Rear
12” Minimum
Outdoor Unit Front
Service Valves
12” Minimum
Condenser Fan Airflow
Note: Consult factory if minimum clearances can’t be maintained.
EnviroAir High Wall Ductless Split Systems
48” Minimum
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION Refrigerant Line Set Piping Interconnecting line set between the outdoor unit and the indoor unit, must have both refrigerant lines insulated as the expansion device is located in the outdoor unit. Gently bend the line set stubs from the indoor unit to the desired location. Using 2 x 10”/12” Crescent wrenches remove the flare nuts from the indoor unit line stubs. The indoor unit is filled with a dry gas, check for release of this to ensure that no leaks are present. Use a small amount of vacuum pump oil on the male flare threads to ease installation.
Connect the line set to the stubs. Using the 2 wrenches, 1 on the male and 1 on the female tighten the flare nuts. Run the line set to the outdoor unit, avoid tight bends and kinking the lines. If line set length is in excess of that required, cut line set and re-flare or coil excess vertically to facilitate oil return to the compressor
Service port
Gas line service valve
Line set connections under the GRAY caps.
Outdoor Unit
Liquid line service valve
K1CA/K1HA 9,000/2,000 shown. (K1CA/K1HA 18,000/4,000 has an additional liquid line port.)
remove line set cover
Indoor Unit
Install the line set on the indoor unit stubs.
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION Evacuation Gauges can now be attached to the service ports - SERVICE PORTS HAVE A 5/16” CONNECTION TO GAUGES, which is different from the norm for R-22. You will need specific hoses or an adaptor for the 5/16” connection. Once the gauges are attached the line set can be leak checked using Nitrogen at 300 psig. Evacuate the unit and interconnect down to a minimum of 400-500 Microns, break vacuum with Nitrogen to further leak check. Re-evacuate the system down to 300-400 Microns or lower for a period of one hour. This is an R-410A System it is essential that a deep vacuum be pulled on the sys-
tem to remove all traces of moisture. See “System Start-Up” section to fine-tune the refrigerant charge. Main Power Wiring Electrical wiring should be done in accordance with all National Electrical Code (NEC) and local state/city building codes. Note: A small screwdriver is required for unit terminals. Breaker size and wiring must be sized for the rating plate amperage, MCA and HACR. Use only HACR type breakers, each system installed must have a separate branch circuit with an individual breaker/fuse.
Electrical Specifications Nominal Capacity Btuh
Compressor
Volts/Hz/Ph
9,000
115/60/1
7.5
47
35
0.81
16
12,000
115/60/1
9.9
53
45
0.80
16
18,000
208/230/60/1
6.6
42
60
0.85
24,000
208/230/60/1
10.0
46
60
0.90
RLA
LRA
Cond Fan Watts
RLA
Indoor Fan
Total FLA
MCA
HACR Max Fuse
0.35
7.2
10.6
15.0
0.35
9.6
14.0
20.0
40
0.40
6.4
9.5
15.0
40
0.40
8.1
13.8
23.8
Watts
RLA
KWCA/K1CA 09, 12, 18 & 24 Cooling Only
KWHA/K1HA 09, 12, 18 & 24 Heat Pump 9,000
115/60/1
7.5
47
35
0.81
16
0.35
7.2
10.6
15.0
12,000
115/60/1
9.9
53
45
0.80
16
0.35
9.6
14.0
20.0
18,000
220/60/1
6.6
42
60
0.85
40
0.40
6.4
9.5
15.0
24,000
208/230/60/1
10.0
46
60
0.90
40
0.40
8.1
13.8
23.8
A local disconnect should be installed adjacent to the outdoor unit in accordance with National and Local Codes. The outdoor unit provides power for the indoor unit, no disconnect is required between the outdoor and indoor units.
tion. Ground connection must be made to the terminal plate. Heat Pump (208/230 V) unit terminals: L1 - L2 : Power from breaker + G L3 - L4 : Power to indoor unit + G 1 - 2 - 3 : Control signals
Line voltage from the disconnect should be wired to: N - L (115V Unit), + G L1 - L2 (208/230V Unit), + G Remove right side knockout on the terminal access panel for whip/wiring connec-
These are just examples of typical wiring connections. Always refer to Wire Diagram on unit for actual wiring connections.
EnviroAir High Wall Ductless Split Systems
Tip: For easier access to the terminals in the outdoor unit remove the lower access panel to install whip and sealtite connectors for conduit. 11
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION
Electrical Wiring Installation
!
CAUTION
outdoor unit must be a point to point i.e. the terminal that the wire is attached to on the outdoor unit must be the same terminal it is wired to in on the indoor unit.
!
Electrical Wiring should be done by a certified electrician in accordance with all National ElectricalCode (NEC) and local state/city building codes. ALL CONTROLS WIRING BETWEEN INDOOR AND OUTDOOR UNIT IS HIGH VOLTAGE MINIMUM 14 AWG WIRE MUST BE USED.
Remove terminal covers from indoor unit and wire to the terminals, (small screwdriver required). Control wiring from the
THIS IS EXTREMELY IMPORTANT: Switching the L3 - L4 or N1 - L1 wires will allow the indoor unit to operate but it will not provide controls signals for the outdoor unit so that the compressor will not operate. Ground connection should be made to ground screw marked in indoor unit.
COOLING ONLY WIRING Control wiring at outdoor unit (cooling only). Ground wires connected to the terminal plate indoor and outdoor units must be grounded. Connection of wires for outdoor unit and indoor unit (115V Models) Outdoor unit
L1 N1
1
L N
��� � ��
Indoor unit
1
�������
To power source
L1 N1
������ ������
(cooling only model)
(208/230V Models) Outdoor unit
1
L3 L4
L1 L2
������
Indoor unit
1
L3 L4
�������
To power source
������������
(cooling only model)
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION HEAT PUMP WIRING Outdoor unit
1 2 3 L3 L4
L1 L2
If the system is a heat pump the defrost Note: use of colored wire (supplied with sensor must be connected from the inline set) and defrost sensor connected ������� door unit to the defrost sensor in the out- ������ (heat pump only). door unit. Standard lead length is 25 ft, power Indoor 1is2 required 3 L3 L4 source if a longer length then cutTo the unit Indoor sensor connection ������������ (heating model) lead and extend using thermostat wire. The heat pump defrost sensor interconnect wire comes bundled up with the indoor units. It then should be “un-bundled” and connected to the molex connection at the indoor unit and run to the outdoor unit molex connection, typically with the interconnecting wiring and/or interconnecting tubing.
Outdoor sensor connection
Defrost Sensor
Indoor wire connector
outdoor probe wire connector for defrosting
Ground wires connected to the terminal plate on indoor and outdoor units must be grounded. Connection of wires for outdoor unit and indoor unit (115V Models) Outdoor unit
1 2 3 L1 N1
L N
������
Indoor unit
�������
To power source
1 2 3 L1 N1
������������
(heating model)
(208/230V Models) Outdoor unit
1 2 3 L3 L4
L1 L2
������
Indoor unit
1 2 3 L3 L4
�������
To power source
������������
(heating model)
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION 12) Condensate Hose: The unit is provided with approximately 18” of condensate hose connected. Hose connection is sized to accept a 3/4” OD or 5/8” ID clear plastic hose to then extend to building drain.
All condensate hose extensions should be in accordance with local building codes. Remember water only flows downhill to ensure positive draining from the unit. Check using water for a positive flow of condensate.
There is approximately 6’ of additional drain hose supplied with the (accessory) line set.
The basic system installation is now complete. The unit is now ready for start up.
SYSTEM START UP The condenser is charged with enough R410A refrigerant for 16 feet of interconnect. For longer line set lengths additional charge must be added in per the following table.
With the evaporator and line set completely evacuated the system can now be opened to allow the refrigerant charge in the outdoor unit to be released into the line set.
Charge oz. per ft.
20 ft.
25 ft.
30 ft.
35 ft.
KWCA/K1CA09/12
.3oz./ft.
1.2 oz.
2.7 oz. 4.2 oz.
5.7 oz.
KWCA/KICA18/24
.6oz./ft.
2.4 oz. 5.4 oz.
8.4 oz. 11.4 oz.
KWHA/K1HA09/12
.3oz./ft.
1.2 oz. 2.7 oz.
4.2 oz.
KWHA/KIHA18/24
.6oz./ft.
2.4 oz. 5.4 oz.
8.4 oz. 11.4 oz.
5.7 oz.
40 ft.
45 ft.
50 ft.
N/A
N/A
N/A
14.4 oz. 17.4 oz. 20.4 oz. N/A
N/A
N/A
CHARGE
LINE SET AND ADDED CHARGE REQUIRED UNIT
14.4 oz. 17.4 oz. 20.4 oz.
The service valves require a 6mm and a 5mm Allen wrench respectively to undo the valve stems. Remove the brass caps from the service valves. Open the suction line valve first to prevent any possible oil logging of the capillary tube expansion device that can occur if the liquid line valve is opened first with the rest of the system in a deep vacuum. Then open the “Liquid or Expanded Gas” line. Unscrew both valve stems until they come to a stop against the valve body, replace the brass caps, then tighten the caps to prevent leaks. Energize the breaker to allow system to be powered. EnviroAir High Wall Ductless Split Systems
Open the suction line valve first
Continued next page.
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
Start the indoor unit, cooling mode is only allowed when the outside ambient temperature is above 60° F to prevent damage to the compressor. Unit has a 3 minute time delay before the compressor start up operation.
Note: If interconnect is less then 16 feet a small amount of refrigerant may need to be reclaimed to achieve the proper charge for optimal operation. EnviroAir recommends fine tuning using the “Superheat” method.
FIELD CHARGING The use of the superheat method is highly recommended for field charging or checking the existing refrigerant charge in a system that is in the cooling cycle. Because each installation is different in terms of indoor air flow, refrigerant line length, etc.., the factory charge may not be correct for every application. To assure the best performance from the air-conditioner, the refrigerant charge should be checked and adjusted, if need be, on each installation. Note: Refrigerant superheat is the temperature above the suction pressure at its saturation temperature.
For proper superheat readings, a standard low-side refrigerant gauge and an accurate thermometer is needed. A mercury or stem-type thermometer is not adequate for suction-line temperatures. We recommend electric thermocouple thermometers (available at most refrigeration wholesalers); however an accurate remote-bulb thermometer can be used. When measuring the line temperature, be sure the thermometer is securely attached to assure accurate measurements. The chart below gives superheat values at various outdoor temperatures. Allow at least 5 minutes running time between charge adjustments for the unit to stabilize.
50
SUPERHEAT °F
SUPERHEAT CHARGING CHART
SUPERHEAT CHARGING CHART
Chart based on 360 to 400 CFM/ton indoor air flow and 50% relative humidity Use on systems that cool with capillary or piston
45
95
40
90
35
85
30 25 20 15
Indoor dry bulb temperature °F
80 75 70
10
5
55
60
65
70
75
80
85
90
95
OUTDOOR TEMPERATURE °F
100
105
110
115
Note: If operating superheat is more than 5° F above the chart value, add refrigerant. If below the chart value remove refrigerant. If below the limit line, remove refrigerant. EnviroAir High Wall Ductless Split Systems
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS FIELD CHARGING
Instructions: 1. Measure suction pressure and determine evaporator-refrigerant temperature on R410A scale of low-side gauge. 2. Measure suction-line temperature on suction line of the unit. 3. Measure outdoor and indoor temperatures.
4. Determine from the table what the superheat should be for the indoor and outdoor temperatures. 5. Adjust charge if needed. Be sure unit is running at stabilized condition.
Example of typical system operations: Cooling Cycle 80°F DB/50% RH Indoors
Conditions
82°F DB Outdoors
Return Gas Psig
140 (49° F Saturated Temperature)
Superheat
Refer to supplied superheat chart (16° F) Heat Cycle 70° F Indoors
Conditions
47° F Outdoors
High Side Gas Psig Sub-Cooling
350/375 (107/112° F Saturated Temperature) 10 - 15° F
Note:
When the system is in heat cycle, the refrigerant charge is checked by using the liquid subcool method. Liquid sub-cool is the temperature below the high side pressure at its saturation temperature.
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OPERATION SECTION FOR
KWCA/K1CA09/12 & KWHA/K1HA09/12 OPERATION AND MAINTENANCE SECTION FOR KWCA/ K1CA18/24 & KWHA/K1HA18/24 model follows this section.
Guide to features and their function There are many models, features and appearance will vary. The figure shown is representative of the operation of 9,000/12,000 Btuh systems.
Air return grill Takes in the indoor air
Push down the air inlet grille and the push both sides of air inlet grille at the bottom.
Lightly push both sides of the air inlet grille at the botton and pull it to this side till a resistance is felt. Note: Do not open the grille at an angle over 60 degrees.
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OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12
Remote Control Operation
This button, when pressed, starts operation and stops when pressed again.
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OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12
Remote Control Operation Note: Wait 3 minutes before restarting the unit. Selecting MODE of OPERATION To select operating mode, point the remote control toward the indoor air conditioning unit: 1) Press the ON/OFF 2) Press the MODE operating modes:
button to START. button to step through the
AUTO MODE – automatically operates the system in DRY, COOL ,or HEAT mode depending on the indoor temperature and setting. COOL MODE – operates the system in COOL mode depending on the indoor temperature and set point. DRY MODE – operates the system in DEHUMIDIFICATION mode. HEAT MODE – operates the system in HEAT mode depending on the indoor temperature and set point. Important: Heating operation will cease at approximately 15° F outdoor temperature due to a sensor located in the outdoor unit. This product does not contain supplemental electric heat, therefore other means of heat need to used when this system ceases operation at low outdoor ambients. FAN MODE – runs the FAN to circulate the air. 3) Press the ON/OFF button again to STOP.
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OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12
Remote Control Operation Temperature adjustment in AUTO SELECT mode To adjust the air temperature during AUTO SELECT mode, point the remote control toward the indoor air conditioning unit: 1) Press the button once. To raise the set point temperature 1°C or 1°F. 2) Press the button once, to reduce the set point temperature 1°C or 1°F. COOL/HEAT & FAN/DRY mode Point the remote control toward the indoor air conditioning unit: 1) Press the ON/OFF
button.
2) Press the MODE button, select the mode of operation; COOL, DRY, HEAT/FAN or AUTO. 3) Press the perature.
or
to set the desired tem-
Heat
Cool
64°F- 88°F (16°C-31°C)
64°F- 88°F (16°C-31°C)
Once minimum or maximum setting is reached operation will be continued by pressing or 4) Press the FAN SPEED sired air flow rate. Press the ON/OFF
button to set the de-
button again to stop.
Notes: • In the COOLING-ONLY operation, the HEAT mode will disable, and it will go to FAN mode. • The settings can be changed even while the air conditioner is off.
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OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12
Remote Control Operation Up/down air flow direction adjustment The up/down air flow direction can be adjusted by pressing the VANE CONTROL button on the remote control, each time this button is pressed, the vane angle changes in the following sequence: (1)
(2)
(3)
(AUTO)
(5)
(4)
• (1) through (5) are fixed positions. • AUTO oscillates up and down automatically. Air flow velocity adjustment To change the vane control velocity press the FAN SPEED button. Each time the button is pressed, fan speed is changed in sequence, [LO]
[MID]
[HI]
[AUTO]
To cool the whole room, use the [HI] setting in COOL MODE. If the sound of the air conditioner operating disturbs your sleep, use the SLEEP mode. (See next page) Recommended horizontal VANE range In AUTO mode the VANE positions are adjusted automatically. In (1)
COOL or
In
HEAT mode VANE positions (3)
(4)
or (2)
or (5)
DRY mode VANE positions are recommended.
are recommended.
Left/right air flow direction adjustment Adjust the air flow direction by hand, move the air flow direction fins left/right to direct the air as desired. Swing adjustment (auto oscillation) Press the SWING button, to adjust the air swinging direction. Press the button again to exit the SWING mode.
EnviroAir High Wall Ductless Split Systems
Note:
• In the cooling operation, when the air conditioner is operated with VANE CONTROL blowing down (4) or (5) for 1 hour, the VANE CONTROL direction is automatically set to level to prevent condensed water from dropping. • Adjust the vertical VANE CONTROL direction using the remote control. • In heating operation, if the output air temperature is too low or when defrosting is done, the horizontal vane position is set to (1).
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OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12
Remote Control Operation Setting the time flashing
Back
Front
When batteries are inserted, the time will automatically be set to 12:00 AM. 1) With the back cover off, press the CLK button with the tip of a ball pen, etc. The time indicator will flash, the time can now be set.
AA Battery
AA Battery
clock button
2) Press the HOUR button to change the hour. Example: (Set to 10:AM ) see front view. 3) Press the MIN button to change the minutes. Example: (Set to 30) see front view.
Press slide cover down to remove Press to set hours
4) When time is set press the CLK button again. Slide the cover back, be sure it’s clicked securely into place. Press to set minutes
Note: The timer is set on basis of the time on the clock. Be sure to set the clock correctly.
Sleep mode Sleep mode will reduce operation sound when sleeping. 1) Press the SLEEP button to activate this feature (air flow sound from the indoor unit is decreased). 2) Press the SLEEP button again to release the sleep mode or press the FAN SPEED button during the SLEEP mode, and the SLEEP mode is released
Press SLEEP button Press FAN SPEED button
Note: Use the sleep mode when you are going to bed. If this mode is used during the day, the capacity is reduced since the ambient temperature is higher. (COOL mode is recommended for day use)
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OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12
Remote Control Operation How to set the ON timer 1) Press the AUTO START button to set the ON timer mode during operation. Each time the button is pressed, the ON timer mode alternates between ON and OFF. 2) Set the time on the timer using the HOUR and MIN buttons. • Each time the HOUR button is pressed, the timer hours are increased by 1 hour. • Each time the “MIN” button is pressed, the timer minutes are increased by 10 minutes. 3) To release the ON timer, press the AUTO START button again. Press
AUTO START
Press to set hours
How to set the OFF timer 1) Press the AUTO STOP button to set the OFF timer mode during operation. Each time the button is pressed, the OFF timer mode alternates beteen ON and OFF.
Press to set minutes
2) Set the time on the timer using the HOUR and MIN buttons. • Each time the HOUR button is pressed, the set time is increased by 1 hour. • Each time the “MIN” button is pressed, the set time minutes are increased by 10 minutes. 3) To release the OFF timer, press the AUTO STop button again. Programming timer operation The ON timer and OFF timer can be used in combination. The set time which is reached mark indicates the first will operate first ( order of timer operations.) Note: If the current time has not been set, the timer operation cannot be accomplished.
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OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12
Features of Heating Operations Important: Heating operation will cease at approximately 15° F outdoor temperature due to a sensor located in the outdoor unit. This product does not contain supplemental electric heat, therefore other means of heat need to used when this system ceases operation at low outdoor ambients.
Defrosting When the outdoor air temperature is very low and humidity is very high, frosting will occur in the heat exchanger of the outdoor unit, which has negative impacts upon the efficiency of the heating performance. In this case, the automatic defrosting function will come into play. The heating operation will be stopped for 5-10 minutes to do the defrosting.
Basic principles and performances • The Heat Pumps absorb heat from the outdoor air and transfers it indoors to heat the indoor air. The heating capabilities through this principle go up/down with the increase/decrease of the temperature of the outdoor air. • When the outdoor air temperature is very low, the system can be used together with other heating devices. Good ventilation should be maintained to ensure safety and prevent accidents.
• The fans of both the outdoor and indoor units are stopped. During the defrosting operation, the run light will flash slowly.
EnviroAir High Wall Ductless Split Systems
• During defrosting, the outdoor unit might generate some steam. It is caused by fast defrosting, which is not a performance failure. • Upon the completion of the defrosting process, the heating operation is resumed.
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OPERATION SECTION FOR
KWCA/K1CA18/24 & KWHA/K1HA18/24 Guide to features and their function
Air return grill Takes in the indoor air
Push down the air inlet grille and the push both sides of air inlet grille at the bottom.
Lightly push both sides of the air inlet grille at the botton and pull it to this side till a resistance is felt.
Note: Do not open the grille at an angle over 60 degrees.
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OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24
Remote Control Operation When timer is set this light is lit.
Air conditioner running light
Digital display It can show set point temperature, fixed time or malfunction code.
Fan speed indicator In high speed, three indicators are lit. In middle speed,two indicators are lit. In low speed, one indicator is lit. Note: The indicator may change, this does not affect the operation.
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OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24
Remote Control Operation
This button, when pressed, starts operation and stops when pressed again.
(fixed direction)
This button is used for selection of the left/right air flow direction, whenever pressed the flap changes from osculating to fix, or from fixed to osculating.
When air-conditioner is cool-only model, the HEAT mode is bypassed to FAN mode.
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OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24
Remote Control Operation Note: Wait 3 minutes before restarting the unit. Selecting MODE of OPERATION To select operating mode, point the remote control toward the indoor air conditioning unit: 1) Press the ON/OFF 2) Press the MODE operating modes:
button to START. button to step through the
AUTO MODE – automatically operates the system in DRY, COOL ,or HEAT mode depending on the indoor temperature and setting. COOL MODE – operates the system in COOL mode depending on the indoor temperature and set point. DRY MODE – operates the system in DEHUMIDIFICATION mode. HEAT MODE – operates the system in HEAT mode depending on the indoor temperature and set point. Important: Heating operation will cease at approximately 15° F outdoor temperature due to a sensor located in the outdoor unit. This product does not contain supplemental electric heat, therefore other means of heat need to used when this system ceases operation at low outdoor ambients. FAN MODE – runs the FAN to circulate the air. 3) Press the ON/OFF button again to STOP.
EnviroAir High Wall Ductless Split Systems
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OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24
Remote Control Operation Temperature adjustment in AUTO SELECT mode To adjust the air temperature during AUTO SELECT mode, point the remote control toward the indoor air conditioning unit: 1) Press the 1°C or 1°F.
button once, to raise the set point
2) Press the button once, to reduce the set point temperature 1°C or 1°F. COOL/HEAT & FAN/DRY mode Point the remote control toward the indoor air conditioning unit: 1) Press the ON/OFF
button.
button, select the mode of 2) Press the MODE operation; COOL, DRY, HEAT/FAN or AUTO. 3) Press the perature.
or
to set the desired tem-
Heat
Cool
64°F- 88°F (16°C-31°C)
64°F- 88°F (16°C-31°C)
Once minimum or maximum setting is reached operation will be continued by pressing or 4) Press the FAN SPEED sired air flow rate. Press the ON/OFF
button to set the de-
button again to stop.
Notes: • In the COOLING-ONLY operation, the HEAT mode will disable, and it will go to FAN mode. • The settings can be changed even while the air conditioner is off.
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OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24
Remote Control Operation Up & down air flow direction adjustment The up/down air flow direction can be adjusted by pressing the OUT FLAP button on the remote control, each time this button is pressed, the vane angle changes in the following sequence: (1)
(2)
(3)
(5)
(4)
(AUTO)
• (1) through (5) are fixed positions. • AUTO oscillates up and down automatically. Air flow velocity adjustment To change the vane control velocity press the FAN SPEED button. Each time the button is pressed, fan speed is changed in sequence, [LO]
[MID]
[HI]
[AUTO]
To cool the whole room, use the [HI] setting in COOL MODE. If the sound of the air conditioner operating disturbs your sleep, use the SLEEP mode. Recommended horizontal VANE range In AUTO mode the VANE positions are adjusted automatically. In (1)
COOL or
In
HEAT mode VANE positions (3)
(4)
or (2)
or (5)
DRY mode VANE positions are recommended.
are recommended.
Horizontal & vertical auto swing adjustment Adjust the left to right air flow direction with the remote control: • Press the IN FLAP button, the air swing fins will continually oscillate left to right. • Step through the diferent fins positions using the IN FLAP button (fins can also be set in a fixed position).
EnviroAir High Wall Ductless Split Systems
Note:
• In the cooling operation, when the air conditioner is operated with OUT FLAP blowing down (4) or (5) for 1 hour, the OUT FLAP direction is automatically set to level to prevent condensed water from dropping. • Adjust the vertical OUT FLAP direction using the remote control. • In heating operation, if the output air temperature is too low or when defrosting is done, the horizontal vane position is set to (1).
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OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24
Remote Control Operation Setting the time flashing
Back
Front
When batteries are inserted, the time will automatically be set to 12:00 AM. 1) With the back cover off, press the CLK button with the tip of a ball pen, etc. The time indicator will flash, the time can now be set.
AA Battery
AA Battery
clock button
2) Press the HOUR button to change the hour. Example: (Set to 10:AM ) see front view. 3) Press the MIN button to change the minutes.
Press slide cover down to remove Press to set hours
4) When time is set press the CLK button again. Slide the cover back, be sure it’s clicked securely into place. Press to set minutes
Note: The timer is set on basis of the time on the clock. Be sure to set the clock correctly.
Sleep mode Sleep mode will reduce operation sounds when sleeping. 1) Press the SLEEP button to activate this feature (air flow sound from the indoor unit is decreased). 2) Press the SLEEP button again to release the sleep mode or press the FAN SPEED button during the SLEEP mode, and the SLEEP mode is released
Press SLEEP button Press FAN SPEED button
Note: Use the sleep mode when you are going to bed. If this mode is used during the day, the capacity is reduced since the ambient temperature is higher. (COOL mode is recommended for day use)
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OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24
Remote Control Operation How to set the ON timer 1) Press the AUTO START button to set the ON timer mode during operation. Each time the button is pressed, the ON timer mode alternates between ON and OFF. 2) Set the time on the timer using the HOUR and MIN buttons. • Each time the HOUR button is pressed, the timer hours are increased by 1 hour. • Each time the “MIN” button is pressed, the timer minutes are increased by 10 minutes. 3) To release the ON timer, press the AUTO START button again.
Press
AUTO START
Press to set hours
How to set the OFF timer 1) Press the AUTO STOP button to set the OFF timer mode during operation. Each time the button is pressed, the OFF timer mode alternates beteen ON and OFF.
Press to set minutes
2) Set the time on the timer using the HOUR and MIN buttons. • Each time the HOUR button is pressed, the set time is increased by 1 hour. • Each time the “MIN” button is pressed, the set time minutes are increased by 10 minutes. 3) To release the OFF timer, press the AUTO STop button again. Programming timer operation The ON timer and OFF timer can be used in combination. The set time which is reached mark indicates the first will operate first ( order of timer operations.) Note: If the current time has not been set, the timer operation cannot be accomplished.
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
Features of Heating Operations Important: Heating operation will cease at approximately 15° F outdoor temperature due to a sensor located in the outdoor unit. This product does not contain supplemental electric heat, therefore other means of heat need to used when this system ceases operation at low outdoor ambients.
Basic principles and performances • The Heat Pumps absorb heat from the outdoor air and transfers it indoors to heat the indoor air. The heating capabilities through this principle go up/down with the increase/decrease of the temperature of the outdoor air. • When the outdoor air temperature is very low, the system can be used together with other heating devices. Good ventilation should be maintained to ensure safety and prevent accidents.
Maintenance
Defrosting When the outdoor air temperature is very low and humidity is very high, frosting will occur in the heat exchanger of the outdoor unit, which has negative impacts upon the efficiency of the heating performance. In this case, the automatic defrosting function will come into play. The heating operation will be stopped for 5-10 minutes to do the defrosting. • The fans of both the outdoor and indoor units are stopped. During the defrosting operation, the run light will flash slowly. • During defrosting, the outdoor unit might generate some steam. It is caused by fast defrosting, which is not a performance failure. • Upon the completion of the defrosting process, the heating operation is resumed.
The air conditioner must be turned off before the maintenance is to be carried out. Before the operating season 1) Check if there are any materials blocking the intake and outlet vents of the indoor and outdoor units. 2) Check if the installation stand is corroded or rusty. 3) Check if the unit is properly grounded. 4) Check if the air filter is clean. 5) Connect to the power source. 6) Put batteries in the remote controller. During the operating season Check the air filter periodically during the season and clean it if it is dirty. Note: Do not open the grille to an angle over 60 degrees.
1) To remove the air filter screen from the unit. • Gently press the two lower ends of the grille and open it. • Carefully lift the air filter screen up and out pulling it toward you. 2) To Clean the air filter screen vacuum it with a brush attachment (do not lift the front cover more than 60°). If the screen is very dirty, use lukewarm water (about 86°F or 30°C) to wash it. Air dry after washing. • Do not use boiling water to clean the screen. • Do not use exess heat or an open fire to dry the screen. • Do not exert too much force pulling or stretching the screen. 3) Replace the air filter screen.
Air filter screen EnviroAir High Wall Ductless Split Systems
Do not operate the air conditioner without the air filter screen. To do so will cause dirt to collect on the interior of the unit which may lead to poor performance and damage the unit. 33
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
Maintenance To clean the surface of the air conditioner: • Use a soft and dry cloth to wipe the air conditioner off, or use a vacuum cleaner to clean it. • If the air conditioner is very dirty, use a damp soft cloth with a neutral household detergent to clean the surface of the unit. Note: If the air filter screen is blocked by dust or dirt, the performance of cooling and heating will be affected, and the operation noise and power consumption will increased. Therefore, the air filter screen should be cleaned regularly.
After the operating season 1) Set the temperature at 86°F or 30°C and operate in the fan status for about half a day, to dry out the interior of the units. 2) Stop the operation of the system and turn OFF the power switch. The air conditioner will consume about 5W of electric power after the unit is turned off. For energy saving and safety, it is advisable to disconnect the power in the off season. 3) Clean and reinstall the air filter screen. 4) Clean the surface of both the indoor and outdoor units. 5) Take the batteries out of the remote control.
Troubleshooting Check the following before requesting after-sale service from your dealer. If the air conditioner does not operate at all • Check if the main power is on. • Is the time set to “ON” position? (If using the timer function.) • Check for a blown fuse or a power failure. • Check the batteries in the remote control. Poor cooling or heating performance • Room temperature can’t be controlled (Too cold or too hot ). Check if the room temperature setting too low or too high. • Are the air filters clean (Not clogged)? • Are the window (s) and door (s) opened?
Poor cooling performance • Check if direct sunlight is entering the room. • Check if there is a heat source in the room (i.e. - hot plate, oven, stove, etc). • Are there too many people in the room? If the air conditioner does not operate properly ever after conducting the above checks, if there is still doubt even after consulting the Basic Operation Characteristics section on following page of this manual, or in case of such phenomena as described below, turn off the power and contact your distributor.
Cases requiring immediate contact with the installer Disconnect the power immediately, inform your installer in the following situations: • Fuse or breaker often trips off (repeatedly). • Remote does not initiate operation. • Abnormal noise is heard during operation. EnviroAir High Wall Ductless Split Systems
• If faulty operation is observed when the RUN button is pressed and even after restarting the operation after 3 minutes, faulty operation does not disappear.
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ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
Basic Operation Characteristics Problem
Cause
The unit can not be restarted just after shut down. (RUN light is on)
Restart is delayed for 3 minutes after shut down to protect the unit. Three-minute protection timer incorporated in the microcomputer actuates automatically. Except when power is connected, this function does not actuate.
Air does not blow out at starting of heating operation.
Air circulation is stopped to prevent blowing cold air into the room until heat exchanger warms up. ( 2 to 5 min )
Heat pump system ceases operation in heating mode.
Check to see if outdoor temperature is below 15° F. If so, operation will not resume until the outdoor temperature rises above 17° F.
Air is not blown out for 6 to 12 min, at heating operation.
When outdoor temperature is low and humidity is high, the unit sometimes performs defrosting automatically. Please wait. During defrosting, water or steam may be seen coming from the outdoor unit.
Air is not blown out at DRY operation.
Indoor fan is sometimes stopped to prevent vapor of dehumidified moisture and save energy .
Mist is blown out at COOL operation.
This phenomenon sometimes occurs when the temperature and humidity of the room are very high. It will disappear with the lowering of the temperature and humidity.
Noise or cracking sound.
This is caused by the refrigerant that is circulating inside the unit.
Noise is heard (cracking sound). After a power outage or after disconnecting the power supply plug.
This is caused by heat expansion or contraction of plastics.
Operation can not be restarted even if the power is restored.
The memory circuit of the microcomputer is cleared. Operate the remote controller again to restart the operation.
Remote control signals are not received.
Remote control signals may not be received when signal receiver on the air conditioner body is exposed to direct sunlight or strong lighting. Interrupt the sunlight or dim the lighting.
Moisture may form on the air outlet grilles.
If the unit is operated for a long period of time with the high humidity, moisture may form on the air outlet grilles and drip down .
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Phone: 1-800-228-9364 Fax: 1-800-232-9364
5780 Success Drive, Rome, NY 13440
